Eaton Cutler-Hammer RD316T33WS21 1600A 3 Pole Molded Case Circuit Breaker – Bolt-On Mount – 600VAC – S21 Shunt Trip Option

The Eaton Cutler-Hammer RD316T33WS21 is a high-performance molded case circuit breaker designed for precise protection in industrial and commercial electrical systems. Built on the RD R-Frame platform, it integrates the Digitrip RMS 310 electronic trip unit to reliably detect and interrupt overloads, short circuits, and instantaneous faults.

This model features LS protection functions for long-delay and short-delay trips, and includes the S21 option, which equips the breaker with a 24 VAC or VDC shunt trip mounted on the right pole with rear exit. This feature allows remote breaker tripping for enhanced system control and safety.

Voltage and Ratings

• Rated Current: 1600 Amperes
• Maximum Voltage: 600 VAC
• Frequency: 50/60 Hz
• Interrupting Capacity:
• • 125 kA at 240 VAC
  • 65 kA at 480 VAC
  • 50 kA at 600 VAC
• Temperature Rating: 1600A at 40°C
• Application Rating: Rated for 100% continuous operation

Key Specifications

• Digitrip RMS 310 electronic trip unit for accurate fault detection
• LS protection functions (Long Delay, Short Delay)
• Adjustable long-delay pickup via rating plug
• Short-delay protection with selectable I²t or flat response
• Includes S21 Shunt Trip Option (24 VAC/VDC, right pole mounted, exiting rear)
• High interrupting capacity suitable for commercial and industrial systems

Technical Specifications

• Breaker Type: Molded Case Circuit Breaker (MCCB)
• Model Number: RD316T33WS21
• Frame Type: R Frame
• Trip Unit Type: Electronic Non-Interchangeable – Digitrip RMS 310
• Protection Functions: LS (Long Delay, Short Delay)
• Long Delay Pickup: Adjustable via rating plug
• Short Delay Response: I²t response or flat response selectable
• Trip Setting Range: 2–8 × Continuous Ampere Rating
• Number of Poles: 3 Pole
• Connection Type: Bolt-On
• Optional Configuration: S21 Shunt Trip – 24 VAC/VDC, right pole mounted, rear exit

Product Data

• Manufacturer: Eaton / Cutler Hammer
• Series: RD
• Rated Current: 1600A
• Maximum Voltage: 600VAC
• Mounting Type: Bolt-On Installation
• Warranty: 1 Year

Important Notice:
This breaker requires a compatible rating plug for proper operation. Optional accessories, including the S21 shunt trip, can be installed before shipment to meet your system configuration needs.

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You may return items within 10 days of delivery for a refund.

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